Taliafeebo p



T. P. SHAFFNER.

Hydraulic Press to Prevent Corrosionl` No. 60,570. Patented. Dec. 18,-1866.

@uitrit faire @anni @frn IMPROVEMENT IN HYDRAULIC PRESSES 'IO PREVENTGORROSION.

TALIAFERRO P. SLIAIIFNER, or LOUISVILLE, KENTUCKY.

` i Letters -Patent No. 60,570, dated December 18, 1866.

TO ALE WHOM IT MAY CONCERN:

Be it known that I, TALIAFERRO P. ZSILIFFNER, of Louisville, inthecounty of J eiferson, and 4State of Ken* tucky, have made new anduseful improvements in Hydraulic' Presses; and I do hereby declare thefollowing to be afull, clear, and4 exact description of the nature,construction, and operation of the same, sutlicient to enableone skilledin the art to which it appertains to construct and use the same,reference being had to the accompanying drawing, whichI is` made part ofthis specification, and in which my improvement isrepresented inlongitudinal section.` v i f l The object of my invention is to soconstruct the chamber of ,the -press' that chemical combinations may beconducted therein under pressure, by the use of acids,.and withoutsubjecting the walls of the chamber to corrosion. The invention consistsof an anti-corrosive liningl to the press chamber, Whether the powerapplied be hydraulic or otherwise. A

In the drawing- A is the bed-plate, and D D the cylinder, whose4 heads,E F, are` removable by means of unscrewing the nuts K, of the bolts L,for the p urpose of reaching the chamber M N respectively. The `form ofthe press shown is commonly known as a hydraulic press, and the chamberM is connected by the pipe G with a water force-pump, while the pipe'Haiords the means of discharging the contents of the chamber'when,lrequired. The chamber N is lined with a material which lwill withstandthe corrosive action of acid, such as glass, bone, rubber, porcelain,-Etc., so that when acid is contained inthe chamber no corrosion ofthepress shall ensue. For this purpose the piston, B C, is partially orwhollyof an anti-corrosive character, or is line'dfor faced with asubstance that will resist acid, as at C, which is represented as' of ananti-corrosive quality, while the other portion, B, being only exposedto water, is of an ordinary metallic nature. v

As an instance of one purpose to which I intend to apply my invention, Iwill state the saturation under,

pressure of bre in nitro-sulphuric acid for the purpose of makingnitro-fibre gun-cotton, for instance.

This mode of maling gun-cotton, as practised' by `some, is tedious, andI consider it a great object to `saturate the ibre with the combinationof acids under pressure, by which time is saved and a reasonable degreeof certainty and speed combned upon the operation.

,The form or style of the press is not a material matter to myinvention; the one shown in the drawingv .is an ordinary hydraulicpress, but I do not confiney myself to any'part-icular form of press,but specify myr .invention asconsisting of a non-corrosive lining. tothe presschamber and piston face-to those parts exposed,

to the action of the acidulous contents of the chamber. Y

The construction and arrangement of the' press may be lso modified as tooperate by exhaustion, 'instead of by the direct pressure.; thus theacid maybe pressed into the bre,lor it may be drawn in to it, byapplying the principle 4of exhaustion. It may then be forced out, afterthe fibre has absorbed a certain portion, and the remainder may be againused. Clearwater may then be introduced by pressure or by exhaustion,and being subsequently'rcmoved the acidulated water may be usedcommercially. Clear water being again introduced will by washing perfectthe cotton, or it may, for the latter Washing, be removed and cleansedin a tank.

Having described my invention, what I claim therein as new, and desireto 'secureby Letters Patent, is

Anon-corrosive lining to the chamber of an hydraulic or other press, and:tothe piston or that end of it vpresented` to the said chamber; andthis'I claim, whether the said parts consist wholly of material capablelof withstanding the action of acids, 4or whether only such parts arethus protected as are 'exposedto the said action.

The above specification ot' my improvements' in hydraulic presses signedthis 18th day of October, v1865.

TAL. P. SHAFFNER.

Witnesses: v'

Annxn A.' C. KLAUCKE, EnwARn H. KNIGHT.

